<template>
    <div>
      <div class="title">
        <h4>芙蓉楼送辛渐</h4>
        <span
          class="btn"
          @click="btn"
        >
          {{isShow ? '收起' : '展开'}}
        </span>
      </div>
      <div
        class="container"
        v-show="isShow"
      >
        <p>寒雨连江夜入吴,</p>
        <p>平明送客楚山孤。</p>
        <p>洛阳亲友如相问，</p>
        <p>一片冰心在玉壶。</p>
      </div>
    </div>
</template>

<script>
export default {
    name:'Pannel',
    data(){
        return {
            isShow:true
        }
    },
    methods:{
        btn(){
            this.isShow = !this.isShow
        }
    }
}
</script>

<style scoped>
.title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid #ccc;
  padding: 0 1em;
}
.title h4 {
  line-height: 2;
  margin: 0;
}
.container {
  border: 1px solid #ccc;
  padding: 0 1em;
}
.btn {
  /* 鼠标改成手的形状 */
  cursor: pointer;
}
</style>